% This macro source file is from the four volume series % "TeX in Practice" by Stephan von Bechtolsheim, published % 1993 by Springer-Verlag, New York. % Copyright 1993 Stephan von Bechtolsheim. % No warranty or liability is assumed. % This macro may be copied freely if no fees other than % media cost or shipping charges are charged and as long % as this copyright and the following source code itself % is not changed. Please see the series for further information. % % Version: 1.0 % Date: May 1, 1993 % % % This source code is documented in 28.2.7, p. III-455. % Original source in file "io1.TEX", starting line 470. \wlog{L: "readnu.tip" ["io1.TEX," l. 470, p. III-455]}% % This file DOES belong to format "texip." \catcode`\@ = 11 \newread\@ReadNumberStream \newcount\ReadANumberResult \def\InitReadNumbers #1{% \openin\@ReadNumberStream = #1 } \def\@ReadANumberPar{\par} \def\ReadANumber{% \ifeof\@ReadNumberStream \ReadANumberResult = -1 \else \read\@ReadNumberStream to \@ReadANumberTemp \ifx\@ReadANumberTemp\@ReadANumberPar \ReadANumberResult = -1 \else \ReadANumberResult = \@ReadANumberTemp \fi \fi } \catcode`\@ = 12